You need to use Commons Collections because your application makes heavy
use of Collection
objects, and you
wish to use some of the utilities provided by this component.
To use Commons Collections 3.2.1 in a Maven 2 project, add the
following dependency to your project's
pom.xml
:
Example 5.1. Adding a Dependency on Commons Collections
<dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.2.1</version> </dependency>
If you are not sure what this means, I'd suggest reading Maven: The Definitive
Guide. When you depend on a library in Maven 2, all you need to
do is add the dependency groupId
,
artifactId
, and version
to your
project's dependencies. Once you do this, Maven 2 will download the
dependency and make it available on your project's classpath.
For more information about the Commons Collections project, see the project page at http://commons.apache.org/collections.